(19)
(11) EP 0 069 970 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
16.03.1983 Bulletin 1983/11

(43) Date of publication A2:
19.01.1983 Bulletin 1983/03

(21) Application number: 82106029

(22) Date of filing: 06.07.1982
(84) Designated Contracting States:
DE FR GB

(30) Priority: 07.07.1981 JP 10510881

(71) Applicant: NEC CORPORATION
 ()

(72) Inventors:
  • Yamamoto, Kazuhiro
     ()
  • Atobe, Masaaki
     ()

   


(54) Time division multiple access system for transmitting an analog signal by the use of bursts without substantial interruption


(57) In a time division multiple access system comprising a central station and a plurality of substations, a subsidiary analog signal is sampled at a sampling circuit of each substation M times during each frame period to produce a succession of sampled pulses. A group of M sampled pulses is located by a substation delay circuit in each up-link burst assigned to each substation. Responsive to an up-link succession including each up-link burst, the central station reproduces the sampled pulse group from each up-link burst into a reproduced group of M reproduced pulses by central station sampling pulses synchronized with the M sampled pulses. The M reproduced pulses are rearranged by a central station delay circuit into sampled pulse reproductions appearing M times in each frame period. The sampled pulse reproductions are desampled into the subsidiary signal. The number of M may be equal to or greater than one.






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